216967180

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{137321}}^1$

素因数の和:137409

約数の個数: 24

約数和(自身を含む): 461401920

約数和(自身を除く): 244434740

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 137321, 274642, 549284, 686605, 1373210, 2746420, 10848359, 21696718, 43393436, 54241795, 108483590, 216967180]

約数ペア:

[(1, 216967180), (2, 108483590), (4, 54241795), (5, 43393436), (10, 21696718), (20, 10848359), (79, 2746420), (158, 1373210), (316, 686605), (395, 549284), (790, 274642), (1580, 137321)]